# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from abc import ABC
from typing import List

from .. import C


class Decoder(ABC):
    def decode(self, tokens: List[str]):
        return self._decoder.decode(tokens)


class WordPiece(Decoder):
    def __init__(self, prefix: str = "##", cleanup: bool = True):
        self._decoder = C.decoders.WordPiece(prefix, cleanup)
